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Can (domain name) subdomains have an underscore “_” in it?
...tocol"
RFC 5892 "The Unicode Code Points and IDNA"
RFC 5893 "Right-to-Left Scripts for IDNA"
RFC 5894 "IDNA: Background, Explanation, and Rationale"
RFC 5895 "Mapping Characters for IDNA 2008"
You may also want to check the Wikipedia Entry
RFC 5890 introduces the term LDH (Letter-Digit-Hypen) lab...
WebService Client Generation Error with JDK8
...on Windows 7 x64). Rather than modifying the installed JRE lib or any ant scripts (I have multiple projects that include XJC in their builds), I prefer to change Eclipse Settings "External Tools Configurations" and add the following to the VM arguments for the Ant build configuration:
-Djavax.xml....
Git Diff with Beyond Compare
...syntax)
Extract:
$ git config --global diff.external <path_to_wrapper_script>
at the command prompt, replacing with the path to "git-diff-wrapper.sh", so your ~/.gitconfig contains
-->8-(snip)--
[diff]
external = <path_to_wrapper_script>
--8<-(snap)--
Be sure to u...
libpng warning: iCCP: known incorrect sRGB profile
... However, I had images buried in sub-folders, so I used this simple Python script to apply this to all images in all sub-folders and thought it might help others:
import os
import subprocess
def system_call(args, cwd="."):
print("Running '{}' in '{}'".format(str(args), cwd))
subprocess.cal...
Difference between and
...n't do anything by default. They're generally used in conjunction with JavaScript as part of an AJAX application.
<input type="submit"> buttons will submit the form they are in when the user clicks on them, unless you specify otherwise with JavaScript.
...
Why is require_once so bad to use?
...d, so we are already reaching a point thats noticeable to a human. If that script is called frequently it will cause performance issues on the system. Optimization is not a joke and the whole world is not turning around your PC. There are ten thousands of CPUs in use.
– John
...
Maximum size of an Array in Javascript
..., 7, 8];
if (longArray.length >= 6) {
longArray.length = 3;
}
alert(longArray); //1, 2, 3
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The difference between sys.stdout.write and print?
...sys.stdout.write() is preferable to
print
After finishing developing a script the other day, I uploaded it to a unix server. All my debug messages used print statements, and these do not appear on a server log.
This is a case where you may need sys.stdout.write instead.
...
PDO Prepared Inserts multiple rows in single query
...to create the $data array has 28 cols and is about 80,000 lines. The final script took 41s to complete.
Using array_push() to create $insert_values instead of array_merge() resulted in a 100X speed up with execution time of 0.41s.
The problematic array_merge():
$insert_values = array();
foreach(...
In a Bash script, how can I exit the entire script if a certain condition occurs?
I'm writing a script in Bash to test some code. However, it seems silly to run the tests if compiling the code fails in the first place, in which case I'll just abort the tests.
...